the coefficient of x in the expansion (x+1/x)² is :
Answers
Answered by
0
Answer:
The coefficient of x should be 1
Step-by-step explanation:
Answered by
1
Answer:
i think ans is 0
Step-by-step explanation:
coeff. of (x-a)^n =f^n(a)/n!
put a=0 ,
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